I have Honda City Zx Gxi with 91000 km Oddo with complete service record till now. But some weird problem have started since past couple of months which I have not been able to solve till date and its giving me lot of sleepless nights.
My car seems to lose power as the car warms up, especially in the low rpm. Not only it loses power, but the engine seems more noisy, the engine seems to work harder as I depress the pedal further down. The car feels heavy, like the engine isn't powerful enough. In top gear the car seems to have power, but because the engine isn't working smoothly on low rpm's, I can't stand it so I shift before going past 2k rpm. ( idsi engine have max torque at 2700 rpm which is impossible for me to achieve in low rpms
I drove the city of my friend which is exactly same idsi engine and the engine is much more quiet and smoother.
As I said, losing power when it's warm, it's worse when it's really hot (after driving for a long period of time) However, when it's cold, I don't hear much noise, the car isn't as smooth as others, but it's much better, the torque is there, power isn't that great, but it's a whole lot better than when it's hot. Unfortunately, that doesn't last very long, as soon as the car warms a little, I can feel that the engine is losing power, I have to depress the pedal more much in order the accelerate as fast, even there, it seems the car takes much more time to accelerate to a certain speed.
Here's what have been done on the car since problem started few month ago:
-Engine oil changed
-Air filter replaced
-Clutch plate as well as Pressure plate and bearing replaced
-Valve adjustment done
Well, pretty much all the basic maintenance related to the engine and transmission has been done, just in case. I did a compression test and everything was ok.
So here' what have been bothering me for the few past month, it's kind of depressing since I have no idea what it could be.
Any input, feedback on this might be appreciated.